As millions of Americans return to work after the holidays, a quadruple threat of viral infections — including flu, COVID-19, RSV, and norovirus — is sweeping the nation, fueling hospitalizations, mask mandates, and heightened public health concerns, the Daily Mail reported.

The United States is grappling with a surge in respiratory and gastrointestinal illnesses as it enters its peak winter flu season. According to official data, flu, COVID-19, respiratory syncytial virus (RSV), and norovirus are driving significant spikes in infections and hospitalizations. Health experts warn the situation is likely to worsen in the coming weeks.

Recent statistics highlight the widespread impact.

Read more at Newsmax© 2025 Newsmax. All rights reserved.